Okay, I moved into a new house last fall. Ever since, my bass response has been very poor. The room is not perfect to say the least. I should also note that I currently have no sub at all. I will be purchasing a SVS sub this summer but I have no idea which one will provide me with the bass response I need (or shall i say, this room will need). Here is a quick sctech I did in MS Paint: The main HT area has 2.5 walls. The 3 front speakers are facing a full open wall which leads to my porch (via stairs). I guess you can clasify my HT room as a loft. The measurment from my 3 front speakers to the very outter wall is approx 25 ft (about 18ft to the railing and and additional 7ft to the very outter wall with a 20 ft tall ceiling). The ceiling within the 18ft length to the railing is about only about 8 ft high though. I hope I didn't make this too confusing but the room itself is a little complicated. Anyways, I can't really spend a load of cash on an "Ultra" model but I want something that will suffice for the tall cieling and open walls. I also have my heart set on a cylinder. Any suggestions on what SVS I should get to accomidate this loft type HT room ?